百度 由于低端加工业长期大量存在,对技术工人的要求不高,技术工人的收入、社会地位也都不高。

The International Air Transport Association (IATA) is the trade association for the world’s airlines, representing some 350 airlines over 80% of global air traffic. We support many areas of aviation activity and help formulate industry policy on critical aviation issues.?